Geology of the Dry Valley Quadrangle, Idaho (open access)

Geology of the Dry Valley Quadrangle, Idaho

From introduction: The principal objective of the program is to make detailed geologic maps of the areas in which important phosphate deposits in the Phorphoria formation occur. It is hoped that the maps will serve both as an aid in selecting possible sites for mining and as a basis for calculating reserves.
Date: 1955
Creator: Cressman, Earle Rupert & Gulbrandsen, Robert A.
System: The UNT Digital Library